Hans IJzerman, Ph. D.

Social Thermoregulation

Most of my research focuses on how social relationships are pleisiomorphically organized around processes of body temperature regulation, or, more colloquially stated, how our modern relationships are rooted in our penguin bodies.

Research In Progress

Popular Science

Are you a non-scientist, and interested in solid, well-written psychological science? Check out the Open Access In-Mind Magazine (available in English, Dutch, Italian, and German). I founded In-Mind in 2006.

We just submitted a new version of our Human Penguin Project, and the preprint we made available immediately (for free) on PsyArxiv. Article can be downloaded here and abstract available below. Abstract Social ties in general, but having a wider variety of social ties (i.e., complex social integration) specifically, have been shown to create important physical Read more about Submitted a new version of the Human Penguin Project[…]

We were able to revise and resubmit our supervised machine learning paper on the Stroop effect. We applied supervised machine learning on the ManyLabs 3 data and got pretty surprising results. What they are exactly, check out the paper. The really nice feature of the revision is that we added in extra thresholds to determine Read more about Machine learning paper on the Stroop effect resubmitted[…]

Our work on social thermoregulation was extensively covered in the March 2017 issue of the Scientific American Mind. In “The Warmth of Friendship, The Chill of Betrayal”, Marta Zaraska writes extensively about the evolutionary advantages of sharing body heat and what the consequences are for modern relationships. She also contrasts this/our perspective with more cognitive, conceptual metaphor-like theories (see Read more about Our work covered in Scientific American Mind![…]